Home / 1,390,997,070.96-1,919,594,674.72-755,930,168.97

Finding the Fourth Proportional to 1,390,997,070.96, 1,919,594,674.72 and 755,930,168.97

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Solution

The fourth proportional to 1,390,997,070.96, 1,919,594,674.72 and 755,930,168.97 is: 1,043,193,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,997,070.96 : 1,919,594,674.72 = 755,930,168.97 : x
  2. Step 2: Convert to fraction form
    1,390,997,070.96/1,919,594,674.72 = 755,930,168.97/x
  3. Step 3: Cross multiply
    1,390,997,070.96x = 1,919,594,674.72 × 755,930,168.97
  4. Step 4: Simplify right side
    1,390,997,070.96x = 1,451,079,526,815,001,856
  5. Step 5: Solve for x
    x = 1,451,079,526,815,001,856/1,390,997,070.96
  6. Step 6: Final answer
    x = 1,043,193,804.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.